Disclaimer

Flatpak uses OSTree, like Fedora Atomic Desktops (Silverblue, Kinoite etc) and similar to BTRFS snapshots.

So many files are deduplicated and linked, not actually there

https://gitlab.com/TheEvilSkeleton/flatpak-dedup-checker

50GB without
31GB with deduplication
21,4GB with BTRFS compression
  • Ananace@lemmy.ananace.dev
    0·
    1 year ago

    A lot of that data doesn’t actually exist, ostree hardlinks data blobs internally, so the actual size on disk is much smaller than most disk usage tools will show.

    • Pantherina@feddit.deOP
      1·
      1 year ago

      Thanks! The same goes for ostree system versions and BTRFS snapshots probably.

      I have a similar problem with virt-manager and I think that doesnt create dynamically allocated qcow2 containers?